diff --git a/fe/fe-core/src/main/java/org/apache/doris/alter/SchemaChangeHandler.java b/fe/fe-core/src/main/java/org/apache/doris/alter/SchemaChangeHandler.java
index 658c31c3e31b92..f5912ffb05ff68 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/alter/SchemaChangeHandler.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/alter/SchemaChangeHandler.java
@@ -2103,7 +2103,6 @@ public int getAsInt() {
                             index.setIndexId(existedIdx.getIndexId());
                             index.setColumns(existedIdx.getColumns());
                             index.setProperties(existedIdx.getProperties());
-                            index.setColumnUniqueIds(existedIdx.getColumnUniqueIds());
                             if (indexDef.getPartitionNames().isEmpty()) {
                                 invertedIndexOnPartitions.put(index.getIndexId(), olapTable.getPartitionNames());
                             } else {